Dark skies ordinance to dim Pittsburgh's light pollution

For decades, the stars in our night sky have been blotted out by artificial light—from streetlamps, residential houses, businesses, construction sites, vehicles, billboards and so on. The glow they emit misdirects light up towards the sky, obscuring much of the Milky Way.
Read more: https://phys.org/news/2021-09-dark-ordinance-dim-pittsburgh-pollution.html?source=Snapzu